On Amazon
azark double bag
Comfort 7 to 20 °C · extreme −4 °C
220 × 150 cm double with 350 gsm fill, an adjustable hood and a full-length zip; machine washable.
£27.19 · as of 5 Nov, 11:37 GMT
Sleeping bags
A sleeping bag's ratings tell you more than its name. Below: what the comfort, limit and extreme figures mean, then 8 bags in four groups, compared on what their own listings say.
What to look for
- Comfort, limit and extreme
- Under the EN ISO 23537 test standard, comfort is the lowest temperature at which a standard adult woman sleeps comfortably in a relaxed position; limit is the lowest for a standard adult man curled up; extreme is a survival figure with a risk of hypothermia, not a temperature to plan for. Choose by comfort or limit.
- "4-season" in a title is not a rating
- Listing titles use season counts freely. One bag on this page has "4 Season" in its title but lists a comfort range of 7 to 16 °C. Compare the comfort and limit figures instead.
- How the figures were measured
- Only the Andes Nevado listing says its ratings were tested to EN ISO 23537. The others give figures without saying how they were measured, and some give only a comfort range or an extreme figure. We show exactly what each listing says.
- Shape
- Mummy bags taper to the feet, so there is less air inside to warm; rectangular and envelope bags are roomier and most open out into a blanket.
- Weight and packed size
- The two lightweight bags here are 700 to 730 g; the colder-night synthetic bags are about 2 kg; the doubles are larger again (2.6 kg where listed). Check the packed size if you carry it.
- Liners
- A liner adds a washable layer inside the bag and keeps it clean. The two here are 128 g and 0.54 kg; neither listing gives a warmth figure.
Listed cheapest first by the price when we put the list together. Each line says why it is here, using the maker's own listing. We have not tested these products.
Double sleeping bags
Two people in one bag, or one person with room to move. Both are 220 × 150 cm.
On Amazon
SAIL 2-in-1 double bag
Listed for 10 to 0 °C · extreme −5 °C
King-size double that unzips into two singles, with 2 pillows; 250 gsm fill, 2.6 kg.
£33.99 · as of 5 Nov, 11:37 GMT
Prices as of the time shown and may change. Details
Colder nights
For spring, autumn and colder nights. Each card starts with the ratings its listing gives; what they mean is explained above.
On Amazon
Andes Nevado 400 XL mummy bag
Comfort 3 °C · limit −2 °C (EN ISO 23537)
XL mummy, 240 cm long, with a hood, a shoulder baffle and an inside pocket; packs to 35 × 25 cm, about 2 kg.
£24.99 · as of 5 Nov, 11:37 GMT
On Amazon
Trail Alpine 400 hooded bag
Comfort 0 °C · extreme −10 °C (no limit listed)
Two offset layers of 200 gsm hollowfibre, a drawcord hood and a 2-way zip; 220 × 75 cm, 2 kg in its compression bag.
£34.99 · as of 5 Nov, 11:37 GMT
Prices as of the time shown and may change. Details
Lightweight
For carrying: both weigh around 0.7 kg and both are rated for mild or warm nights.
On Amazon
Trinordic summer bag
Comfort above 17 °C
700 g envelope bag that opens out into a blanket; rated for above 17 °C, so for summer.
£34.99 · as of 5 Nov, 11:37 GMT
On Amazon
QEZER down bag (400 g fill)
Comfort 7 to 16 °C · extreme 2 °C
730 g down bag (600 fill power) that packs to 27 × 15 cm; zips to a second bag to make a double.
£72.19 · as of 5 Nov, 11:37 GMT
Prices as of the time shown and may change. Details
Liners
A washable layer inside your sleeping bag.
On Amazon
JAICOM liner
220 × 90 cm liner, 0.54 kg, with a pocket that holds a pillow in place; opens out into a flat sheet.
£17.99 · as of 5 Nov, 11:37 GMT
On Amazon
Naturehike ultralight liner
128 g liner that packs to 15 × 6 cm; machine washable.
£19.99 · as of 5 Nov, 11:37 GMT
Prices as of the time shown and may change. Details
Side by side
| Product | Type | Comfort | Limit | Extreme | Weight | Size | Packed size |
|---|---|---|---|---|---|---|---|
| azark double bag | Double sleeping bags | 7 to 20 °C | Not listed | −4 °C | Not listed | 220 × 150 cm | Not listed |
| SAIL 2-in-1 double bag | Double sleeping bags | 10 to 0 °C (range listed) | Not listed | −5 °C | 2.6 kg | 220 × 150 cm | Not listed |
| Andes Nevado 400 XL mummy bag | Colder nights | 3 °C | −2 °C | −19 °C | 2 kg | 240 × 90 cm | 35 × 25 cm |
| Trail Alpine 400 hooded bag | Colder nights | 0 °C | Not listed | −10 °C | 2 kg (in its bag) | 220 × 75 cm | 38 × 29 × 29 cm |
| Trinordic summer bag | Lightweight | above 17 °C | Not listed | Not listed | 700 g | Not listed | Not listed |
| QEZER down bag (400 g fill) | Lightweight | 7 to 16 °C | Not listed | 2 °C | 730 g | 215 × 82 cm | 27 × 15 cm |
| JAICOM liner | Liners | Not listed | Not listed | Not listed | 0.54 kg | 220 × 90 cm | 20 × 10 cm |
| Naturehike ultralight liner | Liners | Not listed | Not listed | Not listed | 128 g | 210 × 80 cm | 15 × 6 cm |
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